A/C Compressor and Clutch Assembly - Non-Hybrid
WARNING: This page is about a different car, the 2011 Mercury Milan, 2011 Lincoln MKZ, and 2011 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Internal A/C compressor components are not serviced separately. The A/C compressor is serviced only as an assembly. The clutch disc and hub, A/C compressor pulley and bearing and clutch field coil are serviceable.
The A/C compressor has the following characteristics:
- A non-serviceable shaft seal
- A pressure relief valve is installed in the rear of the compressor to protect the refrigerant system against excessively high refrigerant pressures
- The A/C compressor uses PAG oil or equivalent. This oil contains special additives required for the A/C compressor
- The A/C compressor oil may have some slightly dark-colored streaks while maintaining normal oil viscosity. This is normal for this A/C compressor because of break-in wear that can discolor the oil
- Use standard oil matching procedures when installing new compressors
| Item | Part Number | Description |
|---|---|---|
| 1 | W712303 | A/C clutch disc and hub bolt |
| 2 | 19D786 | A/C clutch disc and hub |
| 3 | 19D648 | A/C clutch disc and hub spacers |
| 4 | W712302 | A/C compressor pulley snap ring |
| 5 | 19D784 | A/C compressor pulley |
| 6 | W712301 | A/C clutch field coil snap ring |
| 7 | 19D798 | A/C clutch field coil |
When battery voltage is applied to the A/C compressor clutch field coil, the clutch plate and hub assembly is drawn toward the A/C clutch pulley. The magnetic force locks the clutch plate and hub assembly and the A/C clutch pulley together as one unit, causing the compressor shaft to rotate. When battery voltage is removed from the A/C compressor clutch field coil, springs in the clutch plate and hub assembly move the clutch plate away from the A/C clutch pulley.